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J. J. HEYS. LAST'.

APPLICATION- FILED MAR. I8. ISIB.

l 3 1 2,54 8 Patented Aug. 12, 1919.

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To cl3 whom z't'may concern:

Be it known that I, JOHN `J. Hays, a citi yzen of the UnitedStates,residing at Lynn, in the county of Essex and State of Massachusetts,have invented certain impro ments. in Lasts, of which the followingdescription, in connection `with the accompanying-drawings,is aspecification, like refer- `on the drawings indicating like partsin `theseveral gures. This invention A ticular to separable lasts Whose heelparts are separable from the foreparts and removable while the last isin the shoe. Lasts of this type have been proposed for use in shoemaking.according to that process Wherein the heeling operation is performed ona jackafter the removal of the last heel part the pin as to be locatedwe l strength, and this causes the or to shorten so portions of theleaving the forepart of the last in the shoe. The removal of the lastheel part permits the attachment of the heel by either outside or insidenailing, and without any danger of crushing the heel part in the formeroperation, while theforepart of the last holds the forepart ofthe shoein position under lasting tension. V.'lhe heel part and generalconstruction of such a last need not be as strong and expensive heelingis done, and, further, the heel part When removed can be at once usedwith another fore'part in making another shoe, While the first-mentionedshoe is setting` on its last fore-part; and thus one heel part can bemade to do for several foreparts, and the amount of invested capital perpair of shoes manufactured can be decreased.'

Diiculty has been experienced in provid ing a last which shallshortenrapidi V'and to a sudicient extent to ermit rea y removal of the heelpart without disturbing the forepart, and which shall at the same timebe markedly cheaper than lasts on which heeling is done. My invention isdirected tothe overcoming'of this diiliculty.

It has been found to be desirable to give a swln g movement tocollapsible last in shortening it; as distinguished from a movement oftranslation only. When the heel part is thusswung on. a hinge in, as hasbeen fre uently proposed, l upm the body of the last, in order tosecurethe requisite last to lengthen slightly before -lt shox-tens, slowlythat thebroad tread i Specication of Letters Patent.

' portion of the shoe; wh

relates to lasts, and in par-v Y `with as in lasts on which be placed ashorizontal cut 16,

the heel part of a.

i, VThe last is locked against collapsingby resented neg. ie, taie.,

- Application filed march 1e, 1918. @rial No. 223,114.

heel cannot slip, readily through the Icounter ereas it is desirablethat it shorten at once, andrapidly. Lasts of this type which havedispensed with the hinge pin have used more or less complicated ndinghinge mechanisms, which weakened the last owing to the extensive cuttingrequired to insert them, and 'are expensive.

. accordance with im ortant features of the invention my last is ividedby a circular arc swung about a center lying below the heel bottom andhas a shoulder to hold the heel part against movement backward fromextended osition, and is provided a separable ending means permittingthe-disengagement ot' forepart as the heel part slides on the circularcut.

These and other features of the invention, including certain variousarrangements and combinations of parts, will be best understood frointhefollowing description of a preferred embodiment of the invention,selected for urposes of illustration and shown in the rawings in which,

Figure l is a broken-away elevation of the last; i Fig. 2 is a similarView showing the last its initial collapsing movement; v Fig. 3 showsthe last parts separated. The-last is divided bytwo circular cuts l0, 12taken about a last shown, substantially in the tread face of the ballportion. It will be apparent as the description roceeds that this centercan esired, since it physically lays-no part in the collapsin of. thelast. he two cuts 10, 12 are JoinV by a short the heel part portionthereof overhanging the fcrepart portion.

The bonding means comprises a pin 18 and a hook 20, mounted in theforepart Aand heel pant, respectively, in the last shown. The hook ispart by .rivets 22, and extends into a slot in the orepart, across whichthe pin 18 exhaving the same center le as the cuts 1 0, 12,-when thelast is assembl mounted in the reinto abushed hole 28 1n the h ncollapsing the lest, a tool 30 may be'used to depress the in 26 and thento pull the heel part orwar The a spring-held pin 26 part and rojectin iai paathe heel part from the anchored in a slot -in the heel 'los rio

curves 10,

, heel part takes place l2 lie entirely above the center le, endconsequently nates .in a' rtlon extendingin a horizontal direction trough the instep, instead of a nearly vertical portion through' thecone, so that a pronounced forward movement of the I in the colla singoperation. Theheel part will slide eely and easily forward about thecenter 14, the last shortening from the very beginning of the movement,since the center 14 lies below the heel bottom.. When the hook has risensufliciently to become disengaged from the pin 18 it disconnects the twolast parts and the heel art may be lifted out of the shoe, leavlng theforepart undisturbed. There is no complicated bonding mechanism to stickand cause the. displacement of the tore art in the shoe. The fittingsused in the ast shown are exceedingly cheap and simple. The three pinsare cut from bar steel and the hook member 2O is e punching.

The shape of thesurfaee 16 locks the heel part positively againstbackward movement, and also supplies a firm bearing against twistingstresses.

the curve l0 terrin-A miente Having; thus described my invention, what lclaim as new and desire to secure yLet ters Patent of the United Statesis :j

'1. A separable last divided on a, circular arc swung about a centerlg'ilill; below the heel bottoniA and havin a s o der to hold the heelpart against ackward movement from extended position, ing a reoe with apin therein, a hook in the heel part extending beneath said shoulder andinto the recess in the forepart-for engaging said pin, and a locking pinin one last part engaging the other part to lock said parts againstcollapsing movement.

2. A separable last divided by two circular arcs swung about a .centerlying below the heel bottom and joined by a substantially horizontalcut, the heel part side thereof overhan 'ng the forepart side, andhaving a pin an hook bondingt means constructed and arranged 'to slidelnto engagement and disengagement las the heell part slideson thecircular dividing cut. y

in testimony whereof I have, signed my nameto this speciwtion.

Jenn J. ners. c

the forepart: hav-

